Im 26 and am a regular weight lifter. Nothing heavy or crazy, just try to stay in shape. In 2016 I developed pain in both knees. doctor said it was runners knee. I did PT and it didn't get rid of it but eventually after 6 months it went away. Last January in 2017, I developed lower back pain as well as right shoulder pain at nearly same time. MRI for back showed disc herniation and MRI for shoulder showed normal so doctor diagnosed as impingment. Did PT for shoulder and gave up because no improvement. I have been going to the gym consistently despite these problems. The back pain is better than it was last year but the shoulder has gotten worse.. In 2018 I started to run a few miles every few days. My knees started hurting just like back in 2016. I am at my wits end here. I'm constantly in pain with all 3 of these parts. But I feel like it might be TMS because I can lift and run despite the pain. Any advice? Does it sound like TMS? I do have a history with anxiety.